Bug in textures?

[hansmex]

Emmanuel,

Today I downloaded and installed SH3D 3.7 and the Texture Editor 1.0.
I made a SH3T file with a number of textures using the Editor, and imported it in SH3D. All works well, so far.

I then applied a few random textures on a box, and noticed that with some textures the box turns transparent when seen from certain angles. I checked, and found that these are PNG files. I attach the file that shows this.

I have used these textures before and never noticed this behaviour.

Hans

[Puybaret]

Thank you for your feedback, Hans. [:)]

I also noticed some weird issues with some texture images when they use transparency, and this problem was already there in version 3.1 when I added support for transparent PNGs. [:(]
I think it's due to OpenGL or maybe the library that calls OpenGL, so it will be almost impossible to fix, and you should use transparent PNGs only when necessary.

[Gaytan]

Could this have to do as well with e.g. the cylinder; when looking from it from 'Visitor' mode, it shows squared at the bottom, whilst being a round cylinder…

Rounded walls really show as 'round' at the bottom but cylinder(s) look squared at 'ground level'….

Rgrds,
Ed

[hansmex]

Emmanuel,

Maybe I didn't explain well, but these textures don't use transparency as far as I can see. (I checked in Gimp.)
Still, they look transparent from certain angles.

H

[Puybaret]

Ed, I don't think it's the same issue as the one you described. The issue you talk about, is due to the way surface vertices and surface normals are designed in a 3D model made only of triangles. Posting an image showing what you want to explain would definitively help to remove doubts about your explanations.

Hans, the texture image applied on the bookcase defines a transparent color. Maybe this color is not actually used in the image, but the issue is that Java considers it as potentially transparent though. When removing all information about transparency, the problem you reported disappears.

[hansmex]

E,

But it's the cube that's transparent...
Do I understand you incorrectly? Or maybe you me?

H

[Puybaret]

Strange!?!
On my computer, the cube doesn't show any problem. [:(]

[Gaytan]

Hi Emmanuel,

Here's the link / picture. It shows clearly at the 'bottom of the cylinder', where it sits on the ground, so to speak:

http://cl.ly/image/390J2z25021e

[;)]
Ed

[Gaytan]

Hi Emmanuel,

Me again; since last screendump I played with 'extending the floor (terrace)' over the cylinder and .... now it shows round at the base:

http://cl.ly/image/0K2L0S0e290m

Typical, or ....?

Best regards,

Ed

[Puybaret]

Ed, your cylinder seems to be at lower level and/or inside a hole.